CN202360576U - High-rigidity long-life hub bearing unit - Google Patents
High-rigidity long-life hub bearing unit Download PDFInfo
- Publication number
- CN202360576U CN202360576U CN2011204414968U CN201120441496U CN202360576U CN 202360576 U CN202360576 U CN 202360576U CN 2011204414968 U CN2011204414968 U CN 2011204414968U CN 201120441496 U CN201120441496 U CN 201120441496U CN 202360576 U CN202360576 U CN 202360576U
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- China
- Prior art keywords
- circle
- flange
- cylindrical
- inner flange
- left end
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- Expired - Fee Related
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Abstract
The utility model discloses a high-rigidity long-life hub bearing unit which is characterized in that the left end of an inner flange is provided with a convex curling edge, and the inner circle of the inner race is sheathed in a groove on the outer circle at the left end of the inner flange; the inner circle surface of the outer circle of the inner race sheathed in the groove of the outer circle at the left end of inner flange and the inner circle of an outer flange is provided with a first annular spherical roller track; the circular surface at the joint of the right end of the inner race and the step of the outer circle of the inner flange and the inner circle of the outer flange is provided with a second annular spherical roller track; the circular surface of the outer circle of the inner flange and the right end of the inner circle of the outer flange is provided with a third annular spherical roller track; a retainer and steel balls are respectively in each roller track; the first outer circle at the left end of the outer flange is provided with an O-shaped seal ring; a first rubber seal ring and a magnetic dust cap are arranged between the left end of the inner race and the inner circle at the left end of the outer flange; and a second rubber seal ring is arranged between the outer circle at the right end of the inner flange and the inner circle at the right end of the outer flange to ensure the both end seal of the inner flange and the outer flange.
Description
Technical field
The utility model relates to a kind of automobile hub bearing, specifically a kind of high rigidity long lifetime hub-bearing unit.
Background technique
Hub bearing is the important walking parts of automobile.Hub bearing is being undertaken the surface friction drag when reducing the chassis running, keeps the important task of automobile normal running.In existing automotive hub revolution is supported; What adopt is the bearing unit structure; What in small-sized passenger car, adopt is the spherical hub-bearing unit assembly of biserial angle contacting; And,, adopt cone type hub-bearing unit assembly mostly owing to require bearing capacity big on the commercial car such as commercial vehicle, go-anywhere vehicle.Hub bearing except bearing thrust load, also will bear warp-wise load in the rotation process of load-bearing and wheel hub, but in practice: incapability is a ball bearing; Or tapered roller bearing; Force-bearing situation is very complicated, though it is a lot of to influence the factor in hub bearing life-span, concludes and gets up can be divided into two aspects; The one, the influence of system's other factor is like road conditions, driving operation etc.; The 2nd, the influence of system intrinsic factor is like the concrete structure of load distribution and hub spindle bearing etc.Cause the reason of hub-bearing unit generation early failue, in general, the metal fatigue of the low and rolling surface of contact of rolling bearing rigidity is the principal element of rolling bearing generation early failue and damage.Therefore, have the hub-bearing unit structure now, can not satisfy the needs of automobile industry development.
Summary of the invention
The utility model provides a kind of high rigidity long lifetime hub-bearing unit to the deficiency of existing hub-bearing unit structural design.Through in inner flange cylindrical and outward flange dish, establishing three annular sphere raceways on the corresponding disc of circle; Retainer and steel ball are installed in the annular sphere raceway respectively; Changed the structure of hub; Strengthen the rigidity and the anti-metal fatigue intensity of rolling surface of contact of rolling bearing, can effectively bear bigger thrust load and warp-wise load, improved the reliability and the working life of hub-bearing unit greatly.
The technological scheme of the utility model is: high rigidity long lifetime hub-bearing unit comprises outward flange dish, inner flange, inner ring, steel ball, retainer, O RunddichtringO, rubber seal, magnetic dust cover and bolt; Be provided with protruding crimping in the inner flange left part; Form groove between the step of establishing on crimping that the inner flange left end is protruding and the inner flange cylindrical; Inside race is sleeved in the groove on the inner flange left end cylindrical, and the crimping protruding by left end is locked at inside race in the groove; The corresponding disc of circle is provided with the first annular sphere raceway in inside race cylindrical and the outward flange dish; Inside race right-hand member head and the inner flange cylindrical end face of topping bar combines; The corresponding disc of circle is provided with the second annular sphere raceway in the periphery of inside race and inner flange cylindrical step junction and the outward flange dish; Inner flange cylindrical step is provided with gear ring, is coupled with wheel speed sensors (not drawing) on this gear ring; The corresponding disc of circle is provided with the 3rd annular sphere raceway in inner flange right-hand member cylindrical and the outward flange dish right-hand member.
Establish between the first annular sphere raceway, the second annular sphere raceway and the 3rd annular sphere raceway on the circle in described inside race cylindrical and the outward flange dish first retainer, second retainer and the 3rd retainer are installed, in three row retainers, steel ball is installed respectively; Establish the O RunddichtringO on the flange plate left end cylindrical outside; The left end cylindrical of inside race and outward flange are faced left and are provided with first rubber seal and magnetic dust cover between the interior circle of end; Be provided with second rubber seal between the circle in the right-hand member cylindrical of inner flange and the right-hand member of outward flange dish, to guarantee inner disc and outward flange dish sealed at both ends.
The described a kind of high rigidity long lifetime hub-bearing unit of the utility model is equipped with knurled nut 9 on the flange that is connected as a single entity with inner flange.
The beneficial effect of the utility model is: through in inner flange cylindrical, inside race cylindrical and outward flange dish, setting up steel ball rolling channel between the circle; Retainer and steel ball are installed in setting up raceway; Change the hub internal structure, strengthened the stiffness and the anti-metal fatigue intensity of rolling surface of contact of rolling bearing; Hub-bearing unit bearing capacity and hub-bearing unit working life have been improved.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described
Fig. 1 is the cross-sectional view of the utility model.
1. inner flanges in the drawings, 2, inside race, 3, the magnetic dust cover; 4, first rubber seal, 5, the outward flange end cylindrical of facing left, 6, O type rubber seal; 7, outward flange dish, 8, second rubber seal, 9, knurled nut; 10, internal spline, 11, the first retainer a, the second retainer b, the 3rd retainer c, 12, steel ball.
Embodiment
Be provided with protruding crimping in inner flange 1 left part; Form groove between the step of establishing on crimping that inner flange 1 left end is protruding and inner flange 1 cylindrical; The inside race 2 that the interior circular diameter that the outside diameter of inside race 2 is made as 60-62mm, inside race 2 is made as 45-46mm, wide 28mm is sleeved in the groove on the inner flange 1 left end cylindrical, and the crimping protruding by left end is locked at inside race 2 in the groove; As preferably, the outside diameter of inside race 2 is made as the interior circular diameter 45.6mm of 60.1mm, inside race 2.The corresponding disc of circle is provided with the first annular sphere raceway in inside race 2 cylindricals and the outward flange dish 7; Step end face on inside race 2 right-hand member heads and inner flange 1 cylindrical combines; The corresponding disc of circle is provided with the second annular sphere raceway in the periphery of inside race 2 and inner flange 1 cylindrical step junction and the outward flange dish 7; The inner flange cylindrical is topped bar and is provided with gear ring, is coupled with wheel speed sensors (not drawing) on this gear ring; The corresponding disc of circle is provided with the 3rd annular sphere raceway in inner flange 1 right-hand member cylindrical and outward flange dish 7 right-hand members.
Establish between the first annular sphere raceway, the second annular sphere raceway and the 3rd annular sphere raceway on the circle in described inside race 2 cylindricals and the outward flange dish 7; The first retainer a, the second retainer b and the 3rd retainer c are installed, and in retainer, diameter being installed respectively is the steel ball 12 of 10.31875mm; Establish O RunddichtringO 6 on the flange plate left end cylindrical outside; Be provided with first rubber seal 4 and magnetic dust cover 3 in the left end cylindrical of inside race 2 and outward flange dish 7 left ends between the circle; Be provided with second rubber seal 8 between the circle in the right-hand member cylindrical of inner flange 1 and the right-hand member of outward flange dish 7, to guarantee inner disc and outward flange dish sealed at both ends.
The described a kind of high rigidity long lifetime hub-bearing unit of the utility model is equipped with knurled nut 9 on the flange (disk) that is connected as a single entity with the inner flange right-hand member.The described a kind of high rigidity long lifetime hub-bearing unit of the utility model; Be provided with internal spline 10 in the center hole of inner flange 1; The center-hole diameter of inner flange 1 is 32.-32.5mm; Internal spline 10 apertures are 27-28mm, and internal spline is 27 teeth, and internal spline left side and inner flange 1 left side spacing are 25-26mm; Inner flange 1 height (length) degree is 95-96mm, and inside race 2 outside diameters are 63mm.Outward flange dish 7 height (length) degree is 56mm, outward flange dish 7 internal diameter 75-76mm.Required retainer, O RunddichtringO 6, first rubber seal, second rubber seal and magnetic dust cover are directly bought by market.
Claims (1)
1. high rigidity long lifetime hub-bearing unit comprises outward flange dish, inner flange, inner ring, steel ball, retainer, O RunddichtringO, rubber seal, magnetic dust cover and bolt; It is characterized in that: be provided with protruding crimping in the inner flange left part; Form groove between the step of establishing on crimping that the inner flange left end is protruding and the inner flange cylindrical; Inside race is sleeved in the groove on the inner flange left end cylindrical, and the crimping protruding by left end is locked at inside race in the groove; The corresponding disc of circle is provided with the first annular sphere raceway in inside race cylindrical and the outward flange dish; Inside race right-hand member head and the inner flange cylindrical end face of topping bar combines; The corresponding disc of circle is provided with the second annular sphere raceway in the periphery of inside race and inner flange cylindrical step junction and the outward flange dish; Inner flange cylindrical step is provided with gear ring, is coupled with wheel speed sensors on this gear ring; The corresponding disc of circle is provided with the 3rd annular sphere raceway in inner flange right-hand member cylindrical and the outward flange dish right-hand member; Between the first annular sphere raceway, the second annular sphere raceway and the 3rd annular sphere raceway first retainer, second retainer and the 3rd retainer are installed, in three row retainers, steel ball are installed respectively; Establish the O RunddichtringO on the flange plate left end cylindrical outside; The left end cylindrical of inside race and outward flange are faced left and are provided with first rubber seal and magnetic dust cover between the interior circle of end, are provided with second rubber seal between the circle in the right-hand member cylindrical of inner flange and the right-hand member of outward flange dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204414968U CN202360576U (en) | 2011-11-06 | 2011-11-06 | High-rigidity long-life hub bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204414968U CN202360576U (en) | 2011-11-06 | 2011-11-06 | High-rigidity long-life hub bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360576U true CN202360576U (en) | 2012-08-01 |
Family
ID=46571765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204414968U Expired - Fee Related CN202360576U (en) | 2011-11-06 | 2011-11-06 | High-rigidity long-life hub bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360576U (en) |
-
2011
- 2011-11-06 CN CN2011204414968U patent/CN202360576U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20121106 |